Now try running some market leading applications or games, lmao.
Enjoy your lack of Photoshop, enjoy your lack of commercial games. Fact is, you can't compare Linux to a serious OS
You're starting to sound like a troll, and why I don't like the Mac elitist attitude.
I could write an article on this question: "Can Linux be viewed as a serious Operating System?"
Now first off you need to define where you are going to use Linux,
only then you can start to do research on whether it is a serious option in the area you want to use it in.
Now, lets say there is the rare occasion that the need to use Office 2007 arises, or the GIMP doesn't have a certain feature you really need to use, then you can use the excellent WINE, which I can say I use, and is very rare that a program doesn't run with it, Heck I'm able to play Tomb Raider: Anniversary on it.
Fact is, you can't compare Linux to a serious OS
Try telling that to:
Mark Shuttleworth; The first South African in space.
Canonical; the company leading Ubuntu development
The French Government
NASA
Federal Ministry of Education, Nigeria
United States Navy
Munich
33 German universities
Berlin's art colleges; who use Ubuntu.
I could go on, there are a
lot more, but I think thats just a good enough example. In the end it boils down to what you are going to do with your computer.